Our roads in Vermont are straight up horrible. The roads are crowned so bad that if I don't hug either the double yellow or the white line I will scrape damn near everywhere. It would have been a lot harder to fit 3" all the way back, so we ran 2.5 after the high flow cats instead, and it was still a little bit tight in some spots, but not too bad. 3" bullet mufflers would have been hard to fit next to the drive shaft like we've got them now.